I hear you… on some ‘modern’ cars the front bumper cover has to be removed to change a headlight bulb!……
However, there’s more to it than just an access problem…. If ( back in the day) an R3 Avanti was actually used for everyday transportation, imagine what a mess that filter assy would be after zipping along slush covered streets… or even after driving through a torrential rain!….
Not to mention that the last thing a Studebaker Avanti needs is a sizable object, like that air cleaner housing, blocking air flow to the radiator…..
A proper air cleaner assy on the R3 Avantis, had production continued, would have required a complete rework of the passenger side front fender inner skirt panel.….
Of course, in the latter months of 1963 a better air cleaner location on R3 (and even R2) Avantis was about the last thing Studebaker Corporation was thinking about!…. Ed